影响转子中心孔超声波探伤效果的因素及可检率探讨  

Discussion on the Factors Influencing Rotor Center Bore Ultrasonic Testing Effect and the Examining Rate

作　　者：吉桂琴[1] 刘美佳[2] 赵春华[3] 

机构地区：[1]黑龙江大学,黑龙江哈尔滨150008 [2]哈尔滨工业大学,黑龙江哈尔滨150001 [3]哈尔滨电机厂有限责任公司,黑龙江哈尔滨150040

出　　处：《大电机技术》2006年第2期35-37,共3页Large Electric Machine and Hydraulic Turbine

摘　　要：本文阐述了中心孔超声波探伤原理、探伤方法,对影响转子中心孔超声波探伤效果的因素及可检率进行了探讨。并通过大量的实验研究与理论探讨得出:对于采用通常灵敏度或高灵敏度从转子外圆探伤时比较以难以发现的较深部位——即中心孔附近的缺陷,内孔探伤显著地提高了灵敏度。This article elaborated the center bore ultrasonic testing principle, the crack detection methods, and the factors affecting the rotor center bore ultrasonic testing effect and the examining rate. Extensive theoretical and experimental studies have shown that the internal bore flaw near the center hole can be detect with high sensitivity, which would be very difficult to detect using usual sensitivity or high sensitivity from the rotor outside.

关 键 词：无损检测 超声波 双晶探头 

分 类 号：TM306[电气工程—电机]